Description: This function allows the user to generate arcs and circles either globally, locally, or about a selected node or point. The created arc will be included in the CURRENT PART (see PART CONTROL MENU).
Usage:
1. DSI prompts:
> CREATE LOCAL COORDINATES
> PICK NODE/PT FOR ORIGIN
• DSI is asking for a desired coordinate system (local or global) about which to create the arc. DSI prompts the user to create a local system. A thorough explanation of how to create a local coordinate system is covered in the Local Coordinate System, Section 2.16.
Note: Arcs and circles are generated about the local W-axis or global Z-axis.
2. Once the desired coordinate system is acquired, it will be displayed on the screen and the prompt will read:
> ACCEPT? (Y/N/A)
3. If accepted, DSI prompts:
> ENTER RAD, TH1, TH2, INC
• RAD = radius of arc.
• TH1 = beginning point of arc or circle.
• TH2 = ending point of arc or circle.
• INC = angle increment between points (default is 5 degrees).
• Any real value greater than zero is valid. i.e., 100,0,360,10 is a circle with a radius of 100 units with an increment of 10 degrees between points.
An arc and a circle have been generated with the same center.
4. DSI prompts:
> SAME CENTER AND PLANE? (YES/NO/EXIT)
• Do you want to create another circle/arc using the same center and plane.
• YES returns the user to step 3.
NO returns the user to step 1.
EXIT exits the function.